Blockages occur either from thick juices, or from sticky juices, or from an abundance of juices. If the abundance of juices is not accompanied by another reason, then in order to get rid of their harm, it is enough to remove them by bleeding and relaxing the stomach, and if the juices are thick, then the need arises for dissolving and cleansing agents. If the juices are sticky, and especially liquid, then tearing medications are required. You already know the difference between thick and sticky: it's the same difference as between clay and diluted glue. The thick one needs dissolving medicines to make the juice liquid and facilitate its expulsion, and the sticky one needs tearing agents that would come between the sticky juice and the place to which it stuck and clear that place of the juice. Tearing medicines should be crushed into small, small pieces, when the sticky juice, sticking, clogs, tightly adhering to a given place, and its particles are linked to one another.
When dissolving thick juices, you should be wary of two circumstances that are opposite to each other. One is weak dissolution, which enhances the dissolution of bad juices and increases their volume without achieving final dissolution, so that the blockage becomes larger.
The second circumstance is too strong and intense dissolution, in which the liquid part of the juices completely dissolves and their dense part hardens. When there is a need for strong dissolution, it should be followed by a slight softening with substances that are not thick, and at the same time have moderate warmth - this helps to completely dissolve the blockage.
The most difficult blockages are vascular blockages, and of these, the most severe are arterial blockages, and the most severe of the latter are those that occur in the dominant organs. When astringent and emollient properties are combined in opening medicines, they are most suited to the purpose; binding drives away the burning sensation of softening juices from the organ.